Canon R3 AF problem

Discussion in 'Technical Troubleshooting' started by Simon D, Oct 21, 2022.

  1. Simon D

    Simon D New Member

    Joined:
    Oct 11, 2022
    Messages:
    4
    Equipment:
    1dx 1dx MkII R6 400mm f2.8 MkII 70-200mm f2.8 MkII
    Hi,

    On purchasing an R3, I have a major issue with the af, hunting for focus. After the initial focus, the focus points seem to flash randomly around the EVF.

    I have eye control turned off.
    I have eye detection turned on.
    I have Servo selected.
    I have Subject to detect on ‘People’
    I have Subject tracking on.
    I have Switching tracked subjects to ‘0’

    I have Case 4 selected - Tracking sensitivity (-2) - Acc/development tracking (+1)

    I also have the latest firmware installed

    Any help would be greatly appreciated.

    TIA
     

  2. Caladina

    Caladina Well-Known Member

    Joined:
    Jan 30, 2020
    Messages:
    1,836
    Equipment:
    Canon M50
    Canon 18-45mm m, Canon 18-150mm m, Canon 55-200mm m, Canon 22mm m, Canon 28mm m macro,
    Sigma 100-400c ef, Sigma 18-35mm art ef,
    7artisans 7.5mm m, Laowa 100mm macro ef, laowa 9mm zeroD m, Vintage M42 Lenses:
    Ashi Super - Takumar 1.8 / 55mm,
    which lens are you using
    sigma lens?
     
  3. Simon D

    Simon D New Member

    Joined:
    Oct 11, 2022
    Messages:
    4
    Equipment:
    1dx 1dx MkII R6 400mm f2.8 MkII 70-200mm f2.8 MkII
    No RF 70-200mm
     
  4. johnsey

    johnsey Site Moderator Staff Member Site Supporter

    Joined:
    Apr 21, 2017
    Messages:
    2,245
    Location:
    Fargo, ND
    Equipment:
    5dMk4, 5dsR, 5dMk2, 20D, 70-200 2.8L IS, 100mm 2.8 Macro USM, 50mm 1.4, 85mm 1.8, 17-40mm 4.0L, TS-E 24mm 3.5L II, Rokinon 14mm 2.8; Pixma Pro-100
    In servo mode you will get focus points to continuously update trying to track movement through the frame.
    Is the subject moving?
     

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